A method for producing a radio frequency transmitting/receiving element comprising at least one radio frequency antenna and at least one radio frequency chip, and to a corresponding radio frequency transmitting/receiving element made by the method. The method comprises the following steps: providing a temporary rigid carrier; applying a conductor pattern structure comprising the antenna structure of the at least one radio frequency antenna and connection contactsconnected thereto via leadsfor the at least one radio frequency chip; arranging the at least one radio frequency chip on the connection contacts of the conductor pattern structure; applying an electrically insulating layer on the conductor pattern structure, such that the at least one radio frequency chip is surrounded by the electrically insulating layer; and removing the temporary rigid carrier.

A temperature-sensing RFID device includes an RFID chip and an antenna electrically coupled thereto. The RFID chip includes a temperature sensor, while the antenna is adapted to receive energy from an RF field and produce a signal. A shielding structure and/or a thermally conductive or absorbent structure may be associated with the RFID chip. The shielding structure is oriented so as to be positioned between at least a portion of the RFID chip and an outside environment and configured to shield the temperature sensor from at least one environmental factor capable of affecting a temperature sensed by the temperature sensor of an article to which the RFID device is secured. The thermally conductive or absorbent structure is oriented so as to be positioned between at least a portion of the RFID chip and the article and configured to enhance thermal coupling between the temperature sensor and the article.

A circuit for an NFC chip is described herein. According to one exemplary configuration, the circuit comprises an antenna for near field communication, an antenna resonant circuit which has an adjustable resonant frequency, a temperature sensor and a controller circuit coupled to the temperature sensor. The controller circuit is designed to change the resonant frequency of the antenna resonant circuit according to a temperature sensor signal provided by the temperature sensor.

A distributed antenna system including a plurality of remote antenna units, a passive element coupled to at least one of the remote antenna units and an RFID system located proximate the passive element. The RFID system includes processing circuitry and measurement circuitry and the processing circuitry is configured for receiving an interrogation signal and processing the interrogation signal and providing a response. The response includes data associated with a measurement made by the measurement circuitry.

Provided is a cryopreservation container that prevents confusion of specimens to be used for treatment and that is suitable for individual management of fertilized eggs and the like to be cryopreserved. IC tags are attached to a cryopreservation tank 61, a canister 51, a cane 41, and cryopreservation containers such as an ovum storage container 1 and sperm storage containers 71, 81. The cryopreservation containers may also have individual identification codes attached hereto. An ovum storage container 11 is configured by fitting an IC tag 12 from the rear end of a rod-like part 2 of a conventional ovum storage container 1. In addition, the IC tag 12 is formed by providing an inlet 15 inside a thin-walled pipe 14 made of a synthetic resin. The inlet 15 may be fixed at both ends by means of fixing members 18, 18 composed of a nonconductive material, or may be integrally molded with a nonconductive synthetic resin material 20.

RFID tags are combined in increase their range. A first RFID tag comprises a first chip and a first antenna configured to transmit data from the chip. The first RFID tag has a first initial range by which data may be obtained by an RFID reader from the first chip. A second RFID tag comprises a second chip and a second antenna configured to transmit data from the chip. The second RFID tag has a second initial range by which data may be obtained by an RFID reader from the second chip. A conductive path from first antenna to the second antenna is established to change initial ranges to modified ranges which are greater than the initial ranges.

Provided is a cryopreservation container that prevents confusion of specimens to be used for treatment and that is suitable for individual management of fertilized eggs and the like to be cryopreserved. IC tags are attached to a cryopreservation tank 61, a canister 51, a cane 41, and cryopreservation containers such as an ovum storage container 1 and sperm storage containers 71, 81. The cryopreservation containers may also have individual identification codes attached hereto. An ovum storage container 11 is configured by fitting an IC tag 12 from the rear end of a rod-like part 2 of a conventional ovum storage container 1. In addition, the IC tag 12 is formed by providing an inlet 15 inside a thin-walled pipe 14 made of a synthetic resin. The inlet 15 may be fixed at both ends by means of fixing members 18, 18 composed of a nonconductive material, or may be integrally molded with a nonconductive synthetic resin material 20.

RFID plugs and methods of installing the same within a rubber article. When included in the rubber article, the RFID plugs maintain operability pre-vulcanization, during vulcanization, and post-vulcanization to identify, track, and/or sense conditions of the rubber article. The RFID plugs are adapted to be affixed to the rubber article and include, for example, an elongate stem; a head disposed at a first end of the stem, the head containing an RFID device; and a retention feature disposed at a second end of the stem opposite the first end, the retention feature configured to resist pulling forces on the head and the stem.

A radio frequency (RF) sensing device in an assembly is adapted to wirelessly communicate with a remote transceiver. The sensing device includes a substrate; an antenna disposed on the substrate; an electronic circuit disposed on the substrate and electrically coupled to the antenna; a heating element electrically coupled to the electronic circuit for heating a target area; and a sensing element thermally coupled to the heating element for sensing a temperature of the heating element. The RF sensing device is configured to wirelessly receive a power and provides the power to the heating element.

A method produces non-contact dielectric bridges using a transfer machine for positioning an integrated circuit on a conductive circuit and a laser for ensuring the connection of the contacts thereof. The contacts of the integrated circuit that have been registered by a transfer machine in relation to the contacts of the conductive circuit, arranged on a continuous support made of heat- and radiation-resistant polyimide and held under pressure by the device, are welded together using a laser beam. The laser is positioned beneath the continuous support and built into the transfer machine. When the laser is used, the continuous support is immobilized by a stop and go device. The method is designed to increase the productivity of systems used to produce RFID tags, as a result of low investment costs and much faster speeds of connection of the contacts of the integrated circuit and the conductive circuit. The method allows the use of non-contact identification tags to become widespread over many professions.